Typewriting machine



`Fully 3 l, 1923.

W. H. HULSE- TYPEWRITING MACHINE l Filed June 22 1920 3 Sheets-Sheet 2 PEM July 3 l, 1923.

W. H, HULSE TYPEWRITING MACHINE Filed June 22g 1920 5 Sheets-Sheet 5 Patented July 31', 1923.

unirse STATES PATENr ortica.

WILLIAM H. HULSE, OF BROOKLYN, NEW YORK, ASSIGNOB TO UNDERWOOD TYPE- WRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION O? DELAWARE.

'.rrrnwnrrine Machine.

Application filed .Tune 22, 1920.

To all whom t may cof/wem `Be it known that I, WILLIAM H. HULsE, ka citizen of the United States, residing in Brooklyn Borough, in the county of Kings, city and State of New York, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification.

This invention relates to typewriting machines, and is herein disclosed as applied to an Underwood portable machine, one form of which is disclosed in the application ot George W. Campbell, No.` 240,000, filed June 14, 1918 (now Patent No. 1,370,281, dated March 1, 1921). This is a small, compact machine. It is often desired to provide connections whereby one or more typekeys shall not feed the carriage, since it is desired to print such characters as foreign accents, etc.

According to the present invention, keys of this character, which are known as silent-keys, may be so connected that they may be easily incorporated in a machine of the standard type, with the result that spe-V cial dies and special work in constructing such machines are reduced to a minimum and substantially eliminated. In the form of the invention herein disclosed, the universal bar, vwhich is adapted to space thc typewriter carriage along a letter-space at a time, may be adapted to be locked down, by a latch or hook, at the actuation of a silentkey, with the result that the feeding of the carriage, which takes place on the rise of a letter-feeding key, does not take place until a letter-feeding key is actuated, to free the universal barfroin its hook.

The hook mav be provided with detent means which are adapted' to hold it either in effective or ineffective position.1 and the con-` nections between the hook and the rest of the mechanism may be made through springs or resilient members, with the rel sult that accurate adjustment of the parts,

which yis expensive, is rendered unnecessary,any`irregularity being absorbed in the resiliency of said parts.

Other features and advantages will here inafter appear.

1n the accompanying drawings,

Figure 1 isa sectional side view, largely diagrammatic, of an Underwood standard portable typewriting machine, showing the Serial No. 390,853.

present invention as applied thereto, the parts being in normal positions. v Figure 2 is a View similar to Figure 1,

but 'showing the silent-key depressed, havf y Letter-feeding type-keys 1 and silent type-keys 2, when depressed, carry down their key-levers 3 and a, respectively, with the result that pins 5 on said key-levers carry down cam-bells-cranks 6, drawing forward the respective links 7, which are connected to the upper ends 8 of the bellcranks, and are adapted.' to draw forward the lower ends of type-bars 9, with the result that types 10, 11 and 12, in their respective cases, are adapted to print upon the platen Whenever either of the keys 1 or 2 is depressed, a lug 14s found on many of the Underwood yportable typewriting machines, carries down universal bar 15, which is carried throughk its bail-members 16 on a rock-shaft 17. At the depression of the universal bar 15, a rearwardly `and upwardly-extending arm 18 v fast to the rockshaft 17, draws forward a dog-rocker 19, by means of a headedarm 20,`fornied as an adjustable screw, threaded into the arm 1S. The depression yof the universal bar andthe drawing forward' of the dog-rocker 19 carry out of the escapement-wheel 21 the loose dog 22, which normallyv holds said wheel, and move into engagement-with said wheel the solid vdog 23, there bein-g substantially no movement of the escapement-wheelat this time. At the rise of a letter-feeding key` 1.. the universal vbar rises under the tension of its usual springs 211, and the dog-rocker 19 returns under `the pressure of its spring 25,v

thus re-engaging the' loose dog 22'with the escapenient-wheel 21 and' permitting the spring-barrel26 to draw the typewriter carriage 27, including the platen `13, along one letter-space.

y To enable the types 10, 11 vand 12 to print, the ribbon-carrier or ribbon-vibrator 28, which normally holds the ribbon 29 below the printing point, rises at the actua-tion of the universal bar 15. To bring this about, there is provided an upstanding arm 30 which swings forward at the depression of the universal bar,.pressing upon a. linkv 31, which is pivoted toV an elbow 32 of the arm 30, thus swinging forward the long arm 33 of a bell-crank having a short arm 34, because the link 31 is pivoted to the arin 33. The rocking of the bell-crank 33, 34 lifts the ribbon-carrier 28, because the carrier is pivotally attached at 35 to the left-hand end of the long arm of a bell-crank 36, having a dependent armV 37, which carries a pin 38, lying within the fork 39 of the short arm 34. Thus, the depression of the universal bar lifts the ribbon-,carrier 23 through the connections just described, and the rise of the universal bar brings down the ribboncarrier and the ribbon with it. The parts so fardescribed may be substantially similar to those on'machines now on-the market, so far as the letter-feeding keys and the connections operated thereby are concerned.

When a silent-key 2 is depressed, it carries Vdown the universal bar 15, as described above, by its lug 14, lifting the ribbon-carrier 28 and bringing theribbcn to the printing point. The depression of a silent-key,

however, is also effective to carry from itsl normal ineffective posit-ion, seen in Figure l, to itsv effective position, seen in Figure a locking hook or latch 40, which normally has its nose behind the L-wcb 41 of the universal bar 15,-and so is unable to accidentally interfere with the operation of the miivcrsal bar. Y For controlling' the hook 40, 'the silentkey-lever 4 is provided with a lug0 42, which is adapted to engage a cross-rod or bar 43 of a rocking bail device 44, pivoted at 45,

y near the bottom of the frame 46 of the typewriting machine, with the result that the cross-rod 43, which is somewhat in front of the pivot points 45, rocks forwardly and presses the hook 40 forwardly, because it engages a leaf-spring 47,1fast-to the hub 47, by which the hook 40 is made fast on a cross-shaft 48, journaled in end brackets 49, which carry the pivot points 45. The depression of, theV silent-key therefore urges the hook 40 forwardly, with the result that, when the universal bar 15 reaches substantially the bottom of its stroke, the hook 40 catches over the universal bar and holds it down.

The cross-rod or bail-rod 43 extends across the machine s o as to,be. universal to any number of'silent-keys 2 which` it be desired to have in the machine, and it is common to have several silent-keys. This crossrod 43 may be considered as a connection fromthe universal rod 53, and which is adapted to-be struck by the lug 42 on the universal rod 53 to be operated by the silentkey independently of the universal bar l5, to move the universal rod 53 into effective position to be engaged by the key-levers 3 of the letter-feeding type-keys i.. The rocking bail device or bail member 44, including the bail-rods 43 and 53, and the hook or latch 40 may be considered as taken together to form a locking device for the universal bar 15, inasmuch as the only function of the bail member 44 is to operate the latch or hook 4G.

At the rise of the silent-key 2, the hook 40 remains in place, because a detent-spring 50 has seated itself in an opening or depression 51, formed in the hub of the bail device 44, as shown in Figure 2, thus holding the hook 40 in its effective position. This holds the solid dog in engagement with the escapement-wheel 21, preventing the carriage from feeding, and also holds the ribbon-carrier 28 elevated, so that, at the next actuation of any type-key 1 or 2, the ribbon will cause the printing of the appropriate character.` lf any letter-feeding key 1 is next depressed, a lug 52 thereon strikes and fast to the hook 40. This releases the universal bar which is now, however, held depressed `by the lug 14 on vthe depressed key, but permits theV universal bar. to rise at the rise of the letter-feeding key now depressed.

ln order to limit the throw of the hook 4Q backwardly, there may be provided a fixed pin 56, adapted to engage a heel 57, fast tothe cross-smitl 4S, The crossrods 3 and 53, forming the bail system which ontrols the hook or lug 40, are normally l in their ineffective, Figure V1,.position, Ase the detent-spring 50 is adapted to in second depression 58, in the'hub bail device 44, adjacent the depresor thepurpose of compactness, l and 52 in the machine herein r fconparatively straight portions ev-lovers and 4, respectively, and

O EL,

C, respectivelygto enable the crossto be operated, free'of internarts, in the manner described.. ariations may be resorted to within the Y of the invention, andportions of the improvements may be used without others. Having thus described my invention, l claim i 1t ln a t ypewriting machine, the Combiill Cil

nation with a traine and a travelingcarriage, of escapement mechanism 'for the carriage, letter-feeding type-keys, a silent typekey, a universal bar engaged and actuated by the letter-feeding,` and silent keys to actuate the escapeinent mechanism, a hook pivoted on the frame for engaging the universal bar to hold it in actuated posit-ion, and means controlling the position of the hook and arranged to be engaged and actuated by the silent and letter-feeding keys for causing the hook to be moved, respectively, to and from 1iosition to hold the universal bar in actuated position.

2. ln a typewriting machine, the combination with a trame and a traveling` carriage, of an escapeinent for the carriage including` a dog-rocker, a universal bar adapted to actuate the dog-rocker, letter-feeding type-keys adapted to actuate the universal bar, a hook pivoted on the frame, a silenttype-key also adapted to actuate the univerbar, a` hook-actuating device adapted to be operated at the actuation of the silentkey, a detent for holding the hook in its actuated vposition to hold the universal bar, and means for positively releasing the hook from its detent at the actuation of a letterfeedingY key.

' 3. ln a typev'riting machine, the combination with a frame and a traveling carriage, of an escapenient for the carriage including a dog-rocker, a universal bar adapted to actuate the dog-rocker, letter-feeding type-keys adapted to actuate the universal bar, a hook pivoted on the Jrraine, a. silenttype-key also adapted to actuate the universal bar, a hook-actuating device, a detent for holding,` said device in either of its positions, and means whereby the silent-key moves the device in one direction ano a letter-feeding key moves it inthe oppositedireetion.

4. ln a typeivriting machine, the combi` nation with a 'frame and a traveling carriage, of an escapement for the carriage including a dog-rocker, a universal bar adapted to actuate the dog-rocker, letter-feeding;` type-keys adapted to actuate the universal bar, a lock engageable with the universal bar for holding the universal bar in its actuated position, .a bail-member having a rod extending across the machine to be engaged by a silent type-key, a silent typeliey adapted to actuate the universal bar independently of said bail-member and entree-able with said rod to actuate said bailmember to move ther lock into effective locking; engagement with the universal bar, and alsecond rod forming' a part of said bailineniber universal to the letter-feeding keys to be engagedthereby for restoring the bailineniber to its normal position to make the lockA inetl'ective.- `5. ln ka typeivriting machine, the combination with a traine and a traveling carriage, of an escapement for the carriage including a dog-rocker, a universal bar adapted to actuate the dog-rocker, letter-feeding` type-keys adapted to actuate the universal bar, a lock adapted to hold the universal bar in its actuated position, a spring normally tending to return said lock to ineffective position, a bail-member ac oss the machine, a silent-key also operatthe universal bar, a lug on said silentkey adapted to engage the bail-member to make the lock effective, means igor holding it effective, and lugs on said letter-feeding keys adapted to positively return said bailmember to ineffective position.

extending 6. ln a typevvriting machine, the combination With a frame and traveling carriage, of an escapement tor the carriage including a dog-rocker, a universal bar adapted to actuate the dog-rocker, letter-feeding type-keys adapted to actuate the universal bar, a silent-key, a lock for said universal bar engageable therewith to hold it in its actuated position, a rocking device independent ot and adapted to be actuated in one direction by the silent-key. to move the lock 'to eiiective position, connections Whereby the letter-feeding keys move the rocking device in the other direction to ineffective position, and a spring connection between the lock and the rocking device for resiliently operating thelock.`

7. ln a typevvriting machine, the combination With a iframe and a. traveling carriage, oic an escapement tor the carriage including a dog-rocker, a universal bar to actuate the dog-rocker, a rocking device, a lock operated by the rocking device to lock the universal bar, a silent-key adapted to actuate the universal bar and to rock the rocking device to effective position to operate the lock, letter-feeding type-keys adapted to actuate the universal bar in its unlocked condition, and in its locked condition to restore the rocking device to its normal ineiective position to unlock the universal bar, and detent means to hold the rocking device in either of its positions.

S. In a typetvriting machine, the combination -With letter-feeding type-keys and silent-keys, of a ribbon-carrier, an escapement device, a lock, a universal bar actuable by all ot said keys to operate the ribboncarrier and the escapement device, a rocking' member independent of the keys operable in one direction by the silent-keys to operate the lock to lock the universal bar in its actuated position and operable in the other direction by the letter-feeding keys to operate the lock tor unlocking the universal bar, and a spring connection between the rocking member and the lock for resiliently 'operating the lock.v

9. ln a typevvriting'machine, the combination with a frame and a traveling 'earriage, of lan escapement for the carriage including dog-rocker, a universal bar adapted toactuate the dog-rocks", letter-feeding type-keys adapted to actuate the universal bar, a'fsilent-key, a lock for the universal bar comprising a member pivoted on the frame of the typewriting machine, a rocking device also pivoted on the frame, a resilientconnection between the lock and the rocking device, and means whereby the letter-feeding keys and the silent-key selectively operate the rocking device to control the lock.

l0. In a typewriting machine, the combination with a frame and a traveling carriage, of an escapement for the carriage including a dog-rocker, a universal bar adapted to actuate the dog-rocker, letter-feeding type-keys adapted to actuate the universal bar, a silent-key, a lock for the universal bar comprising a member pivoted on the frame of the typewriting machine, a rocking device also pivoted on the frame, a resilient connection between the lock and the rocking device, means whereby the letterfeeding keys and the silent-key selectively operate the rocking device to control the lock, and detent means adapted to hold the rocking device in either of its positions.

ll. In a typewriting machine, the combination with av frame and a traveling carriage, of an escapement for the carriage including a dog-rocker, a universal bar adapted to'actuate the dog-rocker, letter-feeding type-keys adaptedY to actuatethe universal bar a silent-ke i. a lock for the universal bar comprising aymember pivoted on the frame of the typewriting machine,y a rocking device also pivoted on the frame, a resilient-connection between ythe lock and the rocking device,-means whereby the letterfeeding keys and theV silent-key selectively operate thezrocking deviceV t control the lock, aV springV Ynormally tending to make said lock ineffective, and detent means adapted to hold the rocking devicel in either of its two positions.

l2. In a typewriting-machine, the combination withv a frame anda traveling carriage, of an escapement for the carriage including a dog-rocker, letter-feeding typekeys, a` silent-key,'aA universal barV extendingY across the machine and adapted to be operated by all of said keys to operate the dog-rocker, a normally ineffective rod universal .to the letter-feeding type-keys mov- 'ably mounted on Ythe machine frame and extending across the Vmachine adjacent to the universal bar, a device connected to said universal rod toY be operated by the silent-:key independently of the universal bar to move said universalrodiinto effective position to be engaged bythe letter-,feeding type-keys, and apnorinally ineffective lock mounted 'on'.tlie machineV frame independently of said universal rod and adapted to be madel effective by said device when operated by the silent-key to engage the universal bar in the operated position of the latter,rand to be made ineffective when said universal rod is'moved to its normal ineffective position by a letter-feeding typekey.

13. Ina typewriting machine, the combination with a frame and a traveling carriage, of an escapement for the carriage including a ldog-rocker, letter-feeding typekeys, a silent-key, a universal bar extending across said machine and adapted to be operated by all of said keys, a universal rod adjacentl said universal bar and extending across the machine, a connection from said universalfrod adapted to be struck by said silent-key, a lock for the universal bar adapted to be made effective by said connection, lugs on the letter-feeding keys adapted to operate said universal rod to move the connection to ineffective position, a resilient device interposed between said connection and said lock, a spring normally tending to make said lock ineffective, anda detent for holding said universal rod to hold said connection. in either of its positions.

lll. In a typewriting machine, thecombination with a frameanda traveling carriage, of letter-feeding keys, a silent-key, a universal bar extending across said machine and adapted to be actuated by all of said keys, a hook" adjacent saiduniversal bar, a rocking device adapted to operate said hook, a connection at said rocking device adapted to. be actuated at the depression of said silent-key, a spring interposed between said connection and said hook, so that the silentrey urges the hook to effective position and snaps it to effective position when the universal bar is completely depressed, and a detent for holding said rocking device in its actuated position.

l5. ln a typewriting machine, the combination with a frame and a traveling carriage, of letter-feeding keys, a silent-key, a universal bar extending across said machine and adapted to be actuated by all of said keys, 'a'hookadjacent said universal bar, a rocking device adapted to operate said hook, a connection at said rocking device adapted to be actuated at the-depression of said silent-key, a spring interposedv between said connection and said hook, so that the silentkey urges the hook to effective position and snaps it' to effective position when the universal bar .is completely depressed, a de- .tentf fork holding said rocking device in lits actuated` position, and ,devices whereby the actuation of. aletter-,feeding key restores the ,rocking device toY Aineffective. position to permit the hook to become ineffective.

V16., Ina typewriting machine, the combination with .a frame and a traveling car-V universal bar, means for rocking the rocking device at the depression of the silent-key, a spring interposed between the rocking device and the lock to make the lock eil'ective, and means whereby depression of a letter-feedingkey returns the rocking device.

17. ln a typewriting machine, the combination with a frame and a 'traveling carriage, of letter-feeding keys, a silent-key, a universal bar extending across said frame, a rocking device extending across said :trame near the universal bar, a lock for said universal bar, means for rocking the rocking device at the depression of the silent-key, a

spring interposed between the rocking device and the lock to make the lock el'iective, means whereby depression of a letter-feeding key returns the rocking device, a spring normally tending to return the lock to inetfective position, and a detent for holding the rocking device in either oi"- its positions, to selectively control the lock.

18. In a typewriting machine, the combination with a frame and traveling' carriage including a platen, of an escapement mechanism for the carriage, a ribbon-vibrating mechanism, letter-feeding type-keys, a silent-key, a universal bar operable by the letter-feeding type-keys and also by the silent-key and in control of the escapement mechanism and the ribbon-vibrating mechanism, a lock for the universal bar in its operated position, a rocking device independent of the universal bar for operating the lock and operable in one direction by thel silent-key to lock the universal bar and operable in the opposite direction by the letter-feeding type-keys to unlock the universal bar, and means for holding the rocking device in either of its positions.

19. In a typewriting machine, the combination with a traveling carriage, of letteri'eeding type-keys, silent-keys7 an escapement-actuating device universal to the letter-feeding keys and to the silent-keys, a lock mounted on the frame of the machine independently of the escapement-actuating device for locking the latter in actuated positie/n when the lock is made eifective, means universal to the silent-keys but not to the letter-feeding keys for making the lock effective, and means universal to the letterieeding keys but not to the silent-keys for making the lock inetl'ective to permit the escapement-actuating device to be operated by the letter-feeding keys.

20. ln a typewriting machine, the combination with a traveling carriage, or" letterfeeding type-keys, silent-keys, a letter-feedcontrolling member universal to all or" said keys to be operated thereby, a lock independ ent of said member for locking the latter in actuated position when the lock is made eiffective, means universal to the silent-keys but not to the letter-feeding keys for making the lock eective, and means universal to the letter-feeding keys but not to the silentkeys for making the lock ineiiective.

2l. ln a typewriting machine, the combination with a universal bar, of a normally disengaged locking device engageable with the universal kbar to hold it in actuated position, a silent-key engageable with the universal bar and with the locking device to actuate the universal bar and to move the locking device into locking engagement therewith, letter-feeding keys engageable with the locking device in the locked position of. the latter to move it into its disengaged position ier releasing the universal bar, and in the normally disengaged position ci' the locking device said letter-feeding keys being engageable with the universal bar only for actuating it while the locking device remains disengaged, and an escapement device and aribbon-carrier Aboth operated by the universal bar.

l/VLLIAM H. HULSE. TWitnesses:

CATHERINE A. NnwnLL, Rosn Gnns'rnin. 

